| X | PBP | e3kipX1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| W | PBP | e3kipW1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| V | PBP | e3kipV1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| U | PBP | e3kipU1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| T | PBP | e3kipT1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| S | PBP | e3kipS1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| R | PBP | e3kipR1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| Q | PBP | e3kipQ1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| P | PBP | e3kipP1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| O | PBP | e3kipO1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| N | PBP | e3kipN1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| M | PBP | e3kipM1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| L | PBP | e3kipL1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| K | PBP | e3kipK1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| J | PBP | e3kipJ1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| I | PBP | e3kipI1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| H | PBP | e3kipH1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| G | PBP | e3kipG1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| F | PBP | e3kipF1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| E | PBP | e3kipE1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| D | PBP | e3kipD1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| C | PBP | e3kipC1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| B | PBP | e3kipB1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| A | SH2 | e3kipA1 | A: a/b three-layered sandwiches | X: Immunoglobulin-like beta-sandwich | H: MAPEG domain-like | T: MAPEG domain-like | F: SH2 | ECOD (v294.1) |